Alert archive / Illinois / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 41, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Jun 20, 1994, 4:32 PM CDT for Macoupin County, Montgomery County, Illinois. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Jun 20, 1994, 4:32 PM CDT (21:32 UTC)
- Expired
- Jun 20, 1994, 5:00 PM CDT
- In force
- 28 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
Counties Macoupin County, IL, Montgomery County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 9.5 hours before the alert went out and 257 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 754 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 1329 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KSPI 202133 RRA SVRSPI ILC117-135-202200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SPRINGFIELD IL 432 PM CDT MON JUN 20 1994 THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 500 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL ILLINOIS ...SOUTHEASTERN MACOUPIN COUNTY ...SOUTHWESTERN MONTGOMERY COUNTY AT 415 PM CDT...MONTGOMERY COUNTY ESDA SPOTTERS REPORTED 1 INCH HAIL IN LITCHFIELD. AT 430 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM LOCATED 45 MILES SOUTH OF SPRINGFIELD...JUST NORTH OF LITCHFIELD...ALONG I-55. LITTLE MOVEMENT WAS DETECTED WITH THE STORM. PEOPLE IN THE AREA OF LITCHFIELD...HORNSBY...MT OLIVE AND GILLESPIE SHOULD BE ON THE LOOKOUT FOR VERY HEAVY RAIN AND LARGE HAIL WITH THIS STORM. TAKE SHELTER IN A SUBSTANTIAL BUILDING. STAY AWAY FROM WINDOWS. LIGHTNING KILLS...SO STAY OFF OF TELEPHONES. REMEMBER...A SEVERE THUNDERSTORM MAY PRODUCE A TORNADO AT ANY TIME. BYRD
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jun 20, 4:30 PM CDT, 2 minutes before
ILZ017-018-025>031-034>038-202230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 430 PM CDT MON JUN 20 1994 ...SEVERE THUNDERSTORM WATCH FOR WESTERN AND CENTRAL ILLINOIS UNTIL 900 PM... AT 425 PM CDT...RADAR INDICATED STRONG THUNDERSTORMS EXTENDING FROM CARTHAGE...SOUTH THROUGH BASCO...IN CENTRAL HANCOCK COUNTY. THESE THUNDERSTORMS ARE MOVING TO THE EAST AT 20 TO 25 MPH. THE REST OF WESTERN AND CENTRAL ILLINOIS CAN EXPECT THUNDERSTORMS TO RAPIDLY DEVELOP THIS AFTERNOON AND TONIGHT. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO AND T.V. STATIONS FOR FURTHER UPDATES OR POSSIBLE WARNINGS ON THIS DEVELOPING WEATHER SITUATION. WATERHOUSE
Special weather statement, Jun 20, 4:31 PM CDT, 1 minute before
ILZ017-018-025>031-034>038-202230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 430 PM CDT MON JUN 20 1994 ...SEVERE THUNDERSTORM WATCH FOR WESTERN AND CENTRAL ILLINOIS UNTIL 900 PM... AT 425 PM CDT...RADAR INDICATED STRONG THUNDERSTORMS EXTENDING FROM CARTHAGE...SOUTH THROUGH BASCO...IN CENTRAL HANCOCK COUNTY. THESE THUNDERSTORMS ARE MOVING TO THE EAST AT 20 TO 25 MPH. THE REST OF WESTERN AND CENTRAL ILLINOIS CAN EXPECT THUNDERSTORMS TO RAPIDLY DEVELOP THIS AFTERNOON AND TONIGHT. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO AND T.V. STATIONS FOR FURTHER UPDATES OR POSSIBLE WARNINGS ON THIS DEVELOPING WEATHER SITUATION. WATERHOUSE
Nearby
Severe Thunderstorm Warnings in Illinois, 1994Every severe thunderstorm warning in 1994
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.